Bazo : NaOH - natri hidroxit
Fe(OH)3- Sắt (III) hidroxit
Muối : FeCl2- sắt (II) clorua
KHCO3- kali hidro cacbonat
BaSo4- bari sunfat
Axit: HCl- axit clohidric
H2SO4 - axit sunfuaric
Oxit bazo: FeO - Sắt (II) oxit